Watch the first ever video of a shark caught napping

A shark is captured napping for the first time by Discovery videographers.

You often hear that sharks don't sleep. It's a legend based on facts, and it has the added benefit of making the world's favorite summertime horror villain into a juggernaut of nautical death.

But just because sharks don't sleep, doesn't mean they don't nap.

Related: See some of the weirdest sharks, whales and sea life:

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Weirdest sharks, whales & sea life

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Weirdest sharks, whales & sea life

Close up of bull shark.

(Getty Images/Flickr RF)

This massive whale shark slowly swam right at me just below the surface in crystal clear water just off of Molokini Crater, Maui, Hawaii.

A whale shark, nearly six meters (20 feet) long, swims with its huge mouth open near the surface of the plankton-rich water of Donsol town, 24 May 2007. The whale sharks (scientific name: Rhinchodon typus) have been slaughtered in some other parts of the country before, but environmentalist came to the rescue of the endangered giant fish and developed an eco tourism program for Donsol, turning what was once a backward fishing town in the eastern Philippines into a prime tourist spot offering visitors a swim with the whale sharks and transforming local fishermen into whale spotters, dive guides and whale protectors.

(SCOTT TUASON/AFP/Getty Images)

Tiburon prehistorico filmado vivo en Japan

(kainita/Flickr)

Basking shark or Cetorhinus maximus

(Getty Images)

In this handout picture released by Awashima Marine Park, a 1.6 meter long Frill shark swims in a tank after being found by a fisherman at a bay in Numazu, on January 21, 2007 in Numazu, Japan. The frill shark, also known as a Frilled shark usually lives in waters of a depth of 600 meters and so it is very rare that this shark is found alive at sea-level. It's body shape and the number of gill are similar to fossils of sharks which lived 350,000,000 years ago.

(Photo by Awashima Marine Park/Getty Images)

This picture taken on August 1, 2014 shows a dead whale shark being carried on a tractor in a seafood wholesale market in Xiangzhi township in Quanzhou, east China's Fujian province. Local fishermen caught the whale shark which they thought was a 'sea monster' and reported to local police after returning from the sea, local media reported.

(STR/AFP/Getty Images)

This picture taken on August 1, 2014 shows a dead whale shark being carried on a tractor in a seafood wholesale market in Xiangzhi township in Quanzhou, east China's Fujian province. Local fishermen caught the whale shark which they thought was a 'sea monster' and reported to local police after returning from the sea, local media reported.

(STR/AFP/Getty Images)

In this handout picture released by Awashima Marine Park, a 1.6 meter long Frill shark swims in a tank after being found by a fisherman at a bay in Numazu, on January 21, 2007 in Numazu, Japan. The frill shark, also known as a Frilled shark usually lives in waters of a depth of 600 meters and so it is very rare that this shark is found alive at sea-level. It's body shape and the number of gill are similar to fossils of sharks which lived 350,000,000 years ago.

(Photo by Awashima Marine Park/Getty Images)

In this handout picture released by Awashima Marine Park, a 1.6 meter long Frill shark swims in a tank after being found by a fisherman at a bay in Numazu, on January 21, 2007 in Numazu, Japan. The frill shark, also known as a Frilled shark usually lives in waters of a depth of 600 meters and so it is very rare that this shark is found alive at sea-level. It's body shape and the number of gill are similar to fossils of sharks which lived 350,000,000 years ago.

Cornish fisherman Chris Bean's crewmate Mario 'Chino' Rios brings aboard a monkfish (which was later sold directly to the exclusive Paternoster Chop House in the heart of the City of London) caught using overnight nets, a few miles out to sea near Helford on February 25 2009 in Cornwall, England. The Cornish-born 61-year-old skipper of the vessel, the Lady Hamilton - which he had built a year after he started fishing professionally in 1972 - fishes most days, catching fish such as monkfish, sole and red mullet, as well as crab, using traditional, sustainable and environmentally friendly methods, which he then sells directly to local and national customers - including well known sushi eateries and exclusive restaurants in the heart of London. After being caught, the fish is brought ashore at Helford - which was at the centre of a planning row with local fishermen and second home-owners about the construction of a new jetty - is boxed in ice and sent by courier directly to national buyers, often leading to the fish being presented on the plates of restaurant customers in the capital less than 24 hours after being caught of the coast of Cornwall.

(Photo by Matt Cardy/Getty Images)

In this handout picture released by Awashima Marine Park, a 1.6 meter long Frill shark swims in a tank after being found by a fisherman at a bay in Numazu, on January 21, 2007 in Numazu, Japan. The frill shark, also known as a Frilled shark usually lives in waters of a depth of 600 meters and so it is very rare that this shark is found alive at sea-level. It's body shape and the number of gill are similar to fossils of sharks which lived 350,000,000 years ago.

(Photo by Awashima Marine Park/Getty Images)

A 130-centimetre long goblin shark swims in a tank at the Tokyo Sea Life Park's aquarium in this handout photo taken on January 25, 2007 by the park in Tokyo. The Goblin Shark, a deep sea "living fossil" shark, was caught off the shallows of Tokyo Bay and survived barely a week in its new environment. The shark was the second deep sea shark to have been found in the same month.

(REUTERS/Tokyo Sea Life Park/Handout)

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A shark can't stop swimming: they need to keep moving in order to push water through their gills so they can breathe. But to conserve energy at certain times during the day, a shark might, say, find a place with a current, and let the water do more of the work.

Sharks look pretty much the same sleeping as when swimming: dark-eyed nightmares. But maybe it's less scary if you convince yourself they're just snoring underwater. Haha, silly sharks.